Open Watcom FORTRAN 77 Language Reference

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Language Reference 12.3.2 Type Conversion: Conversion to integer Definition: Name: int(a) Usage: INT (generic) I ←INT(I), I ←INT(R), I ←INT(D), I ←INT(C), I ←INT(Z) † INT I ←INT(R) HFIX I2 ←HFIX(R) † IFIX IDINT Notes: I ←IFIX(R) I ←IDINT(D) The value of int(X) is X if X is of type INTEGER. If X is of type REAL or DOUBLE PRECISION, then int(X) is 0 if |X| 1. If X is of type COMPLEX or COMPLEX*16, int(X) is int(real part of X). † is an extension to FORTRAN 77. 12.3.3 Type Conversion: Conversion to real Name: Usage: REAL (generic) R ←REAL(I), R ←REAL(R), R ←REAL(D), R ←REAL(C), R ←REAL(Z) † REAL FLOAT SNGL R ←REAL(I) R ←FLOAT(I) R ←SNGL(D) Notes: For X of type COMPLEX, REAL(X) is the real part of X. For X of type COMPLEX*16, REAL(X) is the single precision representation of the real part of X. † is an extension to FORTRAN 77. 248 Intrinsic Functions
Functions and Subroutines 12.3.4 Type Conversion: Conversion to double precision Name: Usage: DBLE (generic) D ←DBLE(I), D ←DBLE(R), D ←DBLE(D), D ←DBLE(C), D ←DBLE(Z) † DREAL D ←DREAL(Z) † DFLOAT D ←DFLOAT(I) † Notes: For X of type COMPLEX, DBLE(X) is the double precision representation of the real part of X. For X of type COMPLEX*16, DBLE(X) is the real part of X. † is an extension to FORTRAN 77. 12.3.5 Type Conversion: Conversion to complex Name: CMPLX (generic) Usage: C ←CMPLX(I), C ←CMPLX(I,I), C ←CMPLX(R), C ←CMPLX(R,R), C ←CMPLX(D), C ←CMPLX(D,D), C ←CMPLX(C), C ←CMPLX(Z) † Notes: If X is of type COMPLEX, then CMPLX(X) is X. If X is of type COMPLEX*16, then CMPLX(X) is a complex number whose real part is REAL(real part of X) and imaginary part is REAL(imaginary part of X). If X is not of type COMPLEX, then CMPLX(X) is the complex number whose real part is REAL(X) and imaginary part is REAL(0). CMPLX(X,Y) is the complex number whose real part is REAL(X) and whose imaginary part is REAL(Y) for X,Y not of type COMPLEX. † is an extension to FORTRAN 77. 12.3.6 Type Conversion: Conversion to double complex Name: Usage: DCMPLX (generic) † Z ←DCMPLX(I), Z ←DCMPLX(I,I), Z ←DCMPLX(R), Z ←DCMPLX(R,R), Z ←DCMPLX(D), Z ←DCMPLX(D,D), Z ←DCMPLX(C), Z ←DCMPLX(Z) Notes: If X is of type COMPLEX*16, then DCMPLX(X) is X. If X is of type COMPLEX, then DCMPLX(X) is a COMPLEX*16 number whose real part is DBLE(real part of X) and imaginary part is DBLE(imaginary part of X). If X is not of type COMPLEX*16, then DCMPLX(X) is the COMPLEX*16 number whose real part is DBLE(X) and imaginary part is DBLE(0). DCMPLX(X,Y) is the COMPLEX*16 number whose real part is DBLE(X) and whose imaginary part is DBLE(Y) for X,Y not of type COMPLEX. † is an extension to FORTRAN 77. Intrinsic Functions 249
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Open Watcom FORTRAN 77 Language Ref
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Preface Open Watcom FORTRAN 77 is a
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Table of Contents 2.25 ELSE IF Stat
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Table of Contents 3.4.10 Hexadecima
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Table of Contents 11.7 Editing ....
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Table of Contents 12.6.1 ENTRY Stat
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Language Reference 2
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Language Reference 1.3 Source Progr
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Language Reference Example: * From
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Language Reference 8 Order of FORTR
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Language Reference Statement 1 2 3
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Language Reference 2.3 ADMIT Statem
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Language Reference If there is a LO
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Language Reference 2.5 Statement La
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Language Reference 2.6 AT END State
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Language Reference The FORTRAN 77 s
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Language Reference 6. A named block
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Language Reference It is important
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Language Reference 2.11 CHARACTER S
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Language Reference If a symbolic na
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Language Reference Example: LOOP RE
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Language Reference Example: REAL A,
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Language Reference a (d) len is an
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Language Reference 2.15 CONTINUE St
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Language Reference 2.17 DATA Statem
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Language Reference 2. As an extensi
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Language Reference 2.18 DEALLOCATE
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Language Reference 2.19 DIMENSION S
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Language Reference Transfer of cont
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Language Reference Example: * Illeg
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Language Reference c r is a constan
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Language Reference c r is a constan
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Language Reference 2.24 ELSE Statem
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Language Reference 2.26 END Stateme
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Language Reference 2.28 END BLOCK S
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Language Reference 2.30 ENDFILE Sta
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Language Reference 2.31 END GUESS S
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Language Reference 2.33 END LOOP St
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Language Reference 2.35 END SELECT
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Language Reference 2.37 END UNION S
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Language Reference 2.39 ENTRY State
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Language Reference The following ex
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Language Reference 2.42 EXIT Statem
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Language Reference 2.44 FORMAT Stat
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Language Reference 2.45.2 Extended
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Language Reference 2.47 Computed GO
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Language Reference * Illegal use of
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Language Reference 2.50 Arithmetic
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Language Reference An example of an
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Language Reference IF( I .EQ. 10 )T
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Language Reference 2.53.3 IMPLICIT
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Language Reference 2.54 INCLUDE Sta
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Language Reference Example: LOGICAL
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Language Reference It is assigned t
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Language Reference 3. This specifie
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Language Reference 2.57 INTRINSIC S
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Language Reference 2.59 LOOP Statem
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Language Reference 2.61 NAMELIST St
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Language Reference Example: &PERSON
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Language Reference FILE = fin fin i
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Language Reference Notes: 1. If the
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Language Reference 2.64 PARAMETER S
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Language Reference 2.66 PRINT State
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Language Reference Example: PRINT 1
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Language Reference 2.68 QUIT Statem
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Language Reference 2. An internal f
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Language Reference Example: READ( 8
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Language Reference 2.71 RECORD Stat
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Language Reference 2.73 RETURN Stat
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Language Reference Notes: 1. The un
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Language Reference PROGRAM MAIN . .
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Language Reference Example: SELECT
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Language Reference 2.78 STRUCTURE S
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Language Reference 2.80 UNION State
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Language Reference 2.82 VOLATILE St
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Language Reference 2.84 WHILE State
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Language Reference REC = rn IOSTAT
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Language Reference 150
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Language Reference Example: DO10I=1
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Language Reference 123.764 .4352344
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Language Reference Actually, holler
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Language Reference 158 Symbolic Con
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Language Reference [lo:] hi where:
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Language Reference 4.4 Classifying
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Language Reference 4.5 Classifying
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Language Reference Example: CHARACT
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Language Reference STRUCTURE /PERSO
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Language Reference SUBROUTINE PRINT
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Language Reference 172 Unions
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Language Reference Operator Arithme
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Language Reference 7.1.3 Arithmetic
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Language Reference 7.2 Character Ex
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Language Reference where: relop is
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Language Reference Note that the op
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Language Reference 1. logical term
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Language Reference 186 Constant Exp
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Language Reference 8.3 Logical Assi
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Language Reference 8.6 Extended Ass
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Language Reference 192 Extended Ass
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Language Reference Examples follow
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Language Reference 9.4 DO - END DO
Page 210 and 211: Language Reference The next example
Page 212 and 213: Language Reference where: stmt is a
Page 214 and 215: Language Reference Example: * Illeg
Page 216 and 217: Language Reference - the string -10
Page 218 and 219: Language Reference 9.12 GUESS-ADMIT
Page 220 and 221: Language Reference 9.13 QUIT QUIT [
Page 222 and 223: Language Reference Example: LOOP RE
Page 224 and 225: Language Reference READ statement t
Page 226 and 227: Language Reference 214 Notes on Str
Page 228 and 229: Language Reference 10.3 Records FOR
Page 230 and 231: Language Reference accessed directl
Page 232 and 233: Language Reference Example: WRITE(1
Page 234 and 235: Language Reference 5. Any character
Page 236 and 237: Language Reference 224 Printing of
Page 238 and 239: Language Reference Example: REAL X
Page 240 and 241: Language Reference 11.6 Nonrepeatab
Page 242 and 243: Language Reference Example: PRINT
Page 244 and 245: Language Reference Example: INTEGER
Page 246 and 247: Language Reference 11.7.10.4 E and
Page 248 and 249: Language Reference n Example: is 4
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Page 252 and 253: Language Reference 3. An input item
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Page 262 and 263: Language Reference 12.3.7 Type Conv
Page 264 and 265: Language Reference 12.3.13 Remainde
Page 266 and 267: Language Reference 12.3.18 Choosing
Page 268 and 269: Language Reference 12.3.24 Square R
Page 270 and 271: Language Reference 12.3.28 Sine Def
Page 272 and 273: Language Reference 12.3.33 Arccosin
Page 274 and 275: Language Reference 12.3.38 Gamma Fu
Page 276 and 277: Language Reference 12.3.45 Lexicall
Page 278 and 279: Language Reference Definition: Name
Page 280 and 281: Language Reference 12.3.53 Binary P
Page 282 and 283: Language Reference 12.3.58 Allocate
Page 284 and 285: Language Reference Example: INTEGER
Page 286 and 287: Language Reference 2. An array name
Page 288 and 289: Language Reference 5. A name that a
Page 290 and 291: Language Reference 12.8.1 Dummy Arg
Page 292 and 293: Language Reference Example: DIMENSI
Page 294 and 295: Language Reference 282 Subprogram A
Page 296 and 297: Appendices 284
Page 298 and 299: Appendices 10. The DOUBLE COMPLEX s
Page 300 and 301: Appendices 36. Non-character arrays
Page 303 and 304: Index AMAX1 253 AMIN0 254 $ AMIN1 2
Page 305 and 306: Index DATAN 260 dummy procedure 280
Page 307 and 308: Index AINT 250 ANINT 251 ASIN 259 H
Page 309 and 310: Index DREAL 249 IAND 264 DSIGN 252
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Index RETURN 32, 46, 56, 121, 132,
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Open Watcom FORTRAN 77 Language Reference

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